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(D) . Urinary bladder is generally absent in most fishes (except some lungfishes).$b$. $Gambusia$ is a larvivorous fish that feeds on mosquito larvae

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$a, b, c$ and $d$

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(D) . Urinary bladder is generally absent in most fishes (except some lungfishes).$b$. $Gambusia$ is a larvivorous fish that feeds on mosquito larvae and is used for biological control of malaria.$c$. Ampullae of Lorenzini in dogfish $(Scoliodon)$ are electroreceptors,but they also function as thermoreceptors to detect temperature changes.$d$. Electric organs found in fishes like $Torpedo$ are modified muscle tissues.Since all the given statements are scientifically correct,the correct option is $d$.

List $I$	List $II$
$A$. Pleurobrachia	$I$. Mollusca
$B$. Radula	$II$. Ctenophora
$C$. Stomochord	$III$. Osteichthyes
$D$. Air bladder	$IV$. Hemichordata

Column $I$	Column $II$
$(a)$ Aptenodytes	$(i)$ Flying fox
$(b)$ Pteropus	$(ii)$ Angel fish
$(c)$ Pterophyllum	$(iii)$ Lamprey
$(d)$ Petromyzon	$(iv)$ Penguin

Read the following statements and find out the correct statement.
$a$. Urinary bladder is absent in fishes
$b$. Gambusia fish eradicates mosquito larva
$c$. Ampulla of Lorenzini present in dogfish act as thermoreceptors
$d$. Electric organs are modified muscles

Similar Questions

Match List $I$ with List $II$ :
List $I$ List $II$
$A$. Pleurobrachia $I$. Mollusca
$B$. Radula $II$. Ctenophora
$C$. Stomochord $III$. Osteichthyes
$D$. Air bladder $IV$. Hemichordata

Choose the correct answer from the options given below :

Which of the following is an incorrect pair?

Syncytial epidermal cells are present in

Match the following columns and select the correct option:

Column $I$ Column $II$

$(a)$ Aptenodytes $(i)$ Flying fox

$(b)$ Pteropus $(ii)$ Angel fish

$(c)$ Pterophyllum $(iii)$ Lamprey

$(d)$ Petromyzon $(iv)$ Penguin

Annelida and Mollusca resemble in many embryonic features because both have

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Read the following statements and find out the correct statement.$a$. Urinary bladder is absent in fishes$b$. Gambusia fish eradicates mosquito larva$c$. Ampulla of Lorenzini present in dogfish act as thermoreceptors$d$. Electric organs are modified muscles